Astronomy: Fantastic Signals from Space

For a few electrifying days late last
month, a spectacular rumor spread among U.S. scientists. British
astronomers had detected signals so regular and pulsating so rapidly
from four different regions in outer space that they might have been
sent by intelligent beings. Last week, when details of the British
findings reached the U.S., the possibility that the pulsations had been
artificially produced by an advanced civilization seemed remote. But
even if the causes were natural, scientists on both sides of the
Atlantic were in firm agreement that discovery of the pulsing signals,...